.pdfftp://www.loadrunner.com/ftp1/pub/openstorage/install_patch.pdf
... and patches come out When should one apply security patches Patch too soon and you may suffer from instability induced by bugs in the patches Patch too late and you get hacked by attackers exploiting the vulnerability We explore the factors affecting when it is best to apply security patches providing both...
.pdfhttp://www.homeport.org/~adam/time-to-patch-usenix-lisa02.pdf
.pdf